At the Nuclear Energy Industry Forum held in mid-November, a number of industry sources confirmed that since the restart of nuclear power project construction, they have received orders for important parts such as pipes, fittings and valves. There are indications that recently the Ministry of Environmental Protection is also stepping up efforts to review the company's nuclear safety equipment permit. According to the "Regulations on the Supervision and Administration of Civil Nuclear Safety Equipment" and its supporting regulations, the Nuclear Safety Management Division of the Ministry of Environmental Protection has 15 civil nuclear safety projects for Hengyang Hualing Steel Pipe Co., Ltd., China Shipbuilding Industry Corporation, and Dalian Shipbuilding Industry Group Co., Ltd. The equipment permit application was reviewed. The Ministry of Environmental Protection publicized the license information of the above-mentioned application unit on its website on the 3rd, and the publication date was December 3, 2012 - December 10, 2012. The scope of the proposed license is mainly related to pipes and fittings, mechanical penetrations, nuclear safety machinery and equipment, valves, centrifugal pumps and other components.
On November 28th, the National Nuclear Safety Administration organized a three-nuclear, 1st and 2nd Unit Final Safety Analysis Report (FSAR) review initiation meeting in Beijing. This shows that currently, the supervision and supervision departments’ safety supervision over the development of the nuclear industry is not only reflected in In terms of enterprise products, it also involves the safety supervision of the construction of large-scale engineering projects.
According to the different backlight sources, LCDs can be divided into two types: CCFL displays and LED displays.
Misunderstanding:
Many users believe that liquid crystal displays can be divided into LEDs and LCDs. To some extent, this understanding is misguided by advertisements.
The LED display on the market is not a true LED display. To be precise, it is an LED-backlit Liquid Crystal Display. The liquid crystal panel is still a traditional LCD display. In a sense, this is somewhat fraudulent. nature! South Korea`s Samsung was once convicted by the British Advertising Association as violating the country`s advertising laws because its [LEDTV" LCD TVs were suspected of misleading consumers. For liquid crystal displays, the most important key is its LCD panel and backlight type, while the LCD panels of displays on the market generally use TFT panels, which are the same. The difference between LEDs and LCDs is only their backlight types: LED The backlight and CCFL backlight (that is, fluorescent lamps) are diodes and cold cathode lamps, respectively.
LCD is the acronym for Liquid Crystal Display, which means "liquid crystal display", that is, liquid crystal display. The LED display refers to a type of liquid crystal display (LCD), that is, a liquid crystal display (LCD) with LED (light emitting diode) as the backlight source. It can be seen that LCD includes LEDs. Corresponding to the LED display is actually a CCFL display.
(1) CCFL
Refers to a liquid crystal display (LCD) with CCFL (cold cathode fluorescent lamp) as the backlight source.
The advantage of CCFL display is good color performance, but the disadvantage is higher power consumption.
(2) LED
Refers to a liquid crystal display (LCD) that uses LEDs (light emitting diodes) as a backlight source, and generally refers to WLEDs (white light LEDs).
The advantages of LED displays are small size and low power consumption. Therefore, using LEDs as a backlight source can achieve high brightness while taking into account lightness and thinness. The main disadvantage is that the color performance is worse than that of CCFL monitors, so most professional graphics LCDs still use traditional CCFL as the backlight source.
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